Hi Chris,
I´m sorry to hear you are in trouble with the fair haired swedish virgins, but I guess with HMI you´ll open up a different can of worms. I´m exploring HMI right now, strange new world (at least for me)...
The whole topic does not seem to be that easy, with the swiss packs we use sometimes one or another unit simply seems to vanish. Good luck,
Cheers, Ulf